When night fell, she would attempt to find her way back to the castle through the guidance of the stars. She had difficulty in remembering most of the constellations, having not used them since she moved to the City, but what mattered the most was the North Star.
Eris worried, at first, that exploring the forest gave the impression that she was thinking of running away. She spotted him one evening by the castle entrance when she returned, but he dissolved into the darkness before she could say anything. He never waited for her again after that.
The Tempest and the Fire art, from my Beauty and the Beast retelling.